Scraper.



H. D. PRATT SCHAPEh.

APPucmsou mw mme. 19m.

1,266,1 53. Patented May 14, 1918.

MVM

the fullo UNITEU STATE@ PATENT FllIll.

SGILAPER.

Tb all wlwm .9 may rmmw, v

Be it known that l', Hwmm, il Mmm; .n citizen ofthe United t'tszlJ-@s residing in Philadelphia, Pfannsylvfmia* have invemtd certain Impr-'wmums in Scrapms, o? wlf's ing is; :t speeifnton. (me ultiem, mi my mfentinn if struct n Rampe-'r im we in rennt-v and other granular' ma :;1:ii fz'cm piu particularly im: elevation: with A furthei nb ,y m" hw infwmtfm construct tlm *sw-vagin that nrrlbed kn in A @lili nl'nr o mi. te'

1t 1s drawn tnmiigh thv, mi.' i

In the acimnpany N drmvings 1' Figure l u perspective View on" my irnproved scraper;

Fig. 2 is a diagralmnuti 'View slsf-wing the scraper 'in the act mi wanting a laad raf sand from a pile; and

3 is :t tI'mHrw-'W the line 3`3, Fig' 1.

l is the Sera er made al limiet :mami ha ingr at solid to Sui-im 2 .A eznrved end fm-uu; a www m' mchat. l, 4 am the side runners 'whc x the pregunt imtmnca, are in the fm'm 'n lute@ and #attend to a depth equal to than (iv-pil mf tim c *ed chop 3. and

@dismal a inw @n ther, www". i? tlm A Walla of the Semp and ar 1o f. l *i Emmend.y

lem-ij.' @hmm in has n cnr-mr i5? prevents the sand of the scraper.

Secure a T' or aangifimn on the top of the scrapermxri secure a hauling rope 6 to this iron, so that the weight of the scraper' will alwavs h below the draft ling-@md the scraper when free of the sand will always have n tendncy to right its-alf so as to prp` arly dig intr the sand for. another load. By roundingthe back of the scoop 23 of tha scraper, as shown, thx2 scraper will readily ride over the sand as it is returned for another load. I preferably make the scoo end 3 commrntively short so that the sans will not pack edge of the scoop and t 1he hoisting rope 6 y The tup Amation at the front und which *from pnssmg over the top he top plate. is attached to any1:

.lisreum'ff 2*?, m18. Sazisel No. SHLGM.

sviiahlu windings for. the purpQf-e mj -'lragging; the :strayer nvm' the Sui-fue@ 01" n sand piles, such as slmwn at In the 'present instanvi., this Smid pile is in clase proximity lo an elevator' H having tho ordinary lnfltet 'lim mnd flow; into the hoot Si nl' thi my in; 3fm/lf3? at il' is (',mriefi' Termini iq, thv, scraper l.

While il, upm? is mada mf sima?, metal. iIu 1t1M;ed in tlm drawings, it @mi be mada) 0:' my Huthle nmtetizli :md bww/ad in :my nuimhla mannnr, depending upm; its The militia/ry scraper has a tend e sand tn a greater depth 1 c fmsaq'xwntlgn mom power ,mn i2 necessary, but hy making theA Smripfir inA ich@ manner Shown, with n flat il: fr

runners, as shown, the scraper is held from takinga zigzag course and the draft is more even than if the runnerswere omitted.

I claim:

I. The combination of a, scraper for 1reu moving ,granular n'mturia fram a pile, con sting @f a sconp Section for engaging the material; runners forming the aides of the. swap and acting to guide th@ scoop as it w passes thrmxhh the mnteial; and a top plate in advance rif the scnop preventingthe scraper digging irrt@ the pile to a ,greater depth than the scoop swtion.

The combination in a, soraper-, of a top plate turned up at the fnrwafrdf* ed curved scoop :fomn'ng the rear plate and ex tending helnw, the top plate; side plates forming the side Walls of the scoop and extending toward the front end of the scm er, curved at the front edge and forming guldes or runners fm the scr r.

3. r he combination m a, scmpgr, of top :mdfside plates having@J scoop section at oneend; andrau bar mounted on the top of the scraper and to which the hauling ropes are attached, the bar being s0 located as to ,cause/the scraper to right itself when ten- ;ion aput on the rope.

' AWitness whereof I alx my sig-nature.

HOWELL D. PRATT. 

